1 // SPDX-License-Identifier: GPL-2.0+
3 // AMD ACP PCI Driver
7 #include <linux/pci.h>
27 	void __iomem *acp3x_base = adata->acp3x_base;  in acp3x_power_on()
47 			rv_writel(adata->pme_en, acp3x_base + mmACP_PME_EN);  in acp3x_power_on()
52 	return -ETIMEDOUT;  in acp3x_power_on()
76 	return -ETIMEDOUT;  in acp3x_reset()
94 	void __iomem *acp3x_base = adata->acp3x_base;  in acp3x_init()
127 static int snd_acp3x_probe(struct pci_dev *pci,  in snd_acp3x_probe()  argument
137 	if (pci->revision != 0x00)  in snd_acp3x_probe()
138 		return -ENODEV;  in snd_acp3x_probe()
140 	if (pci_enable_device(pci)) {  in snd_acp3x_probe()
141 		dev_err(&pci->dev, "pci_enable_device failed\n");  in snd_acp3x_probe()
142 		return -ENODEV;  in snd_acp3x_probe()
145 	ret = pci_request_regions(pci, "AMD ACP3x audio");  in snd_acp3x_probe()
147 		dev_err(&pci->dev, "pci_request_regions failed\n");  in snd_acp3x_probe()
151 	adata = devm_kzalloc(&pci->dev, sizeof(struct acp3x_dev_data),  in snd_acp3x_probe()
154 		ret = -ENOMEM;  in snd_acp3x_probe()
160 	addr = pci_resource_start(pci, 0);  in snd_acp3x_probe()
161 	adata->acp3x_base = devm_ioremap(&pci->dev, addr,  in snd_acp3x_probe()
162 					pci_resource_len(pci, 0));  in snd_acp3x_probe()
163 	if (!adata->acp3x_base) {  in snd_acp3x_probe()
164 		ret = -ENOMEM;  in snd_acp3x_probe()
167 	pci_set_master(pci);  in snd_acp3x_probe()
168 	pci_set_drvdata(pci, adata);  in snd_acp3x_probe()
170 	adata->pme_en = rv_readl(adata->acp3x_base + mmACP_PME_EN);  in snd_acp3x_probe()
175 	val = rv_readl(adata->acp3x_base + mmACP_I2S_PIN_CONFIG);  in snd_acp3x_probe()
178 		adata->res = devm_kzalloc(&pci->dev,  in snd_acp3x_probe()
181 		if (!adata->res) {  in snd_acp3x_probe()
182 			ret = -ENOMEM;  in snd_acp3x_probe()
186 		adata->res[0].name = "acp3x_i2s_iomem";  in snd_acp3x_probe()
187 		adata->res[0].flags = IORESOURCE_MEM;  in snd_acp3x_probe()
188 		adata->res[0].start = addr;  in snd_acp3x_probe()
189 		adata->res[0].end = addr + (ACP3x_REG_END - ACP3x_REG_START);  in snd_acp3x_probe()
191 		adata->res[1].name = "acp3x_i2s_sp";  in snd_acp3x_probe()
192 		adata->res[1].flags = IORESOURCE_MEM;  in snd_acp3x_probe()
193 		adata->res[1].start = addr + ACP3x_I2STDM_REG_START;  in snd_acp3x_probe()
194 		adata->res[1].end = addr + ACP3x_I2STDM_REG_END;  in snd_acp3x_probe()
196 		adata->res[2].name = "acp3x_i2s_bt";  in snd_acp3x_probe()
197 		adata->res[2].flags = IORESOURCE_MEM;  in snd_acp3x_probe()
198 		adata->res[2].start = addr + ACP3x_BT_TDM_REG_START;  in snd_acp3x_probe()
199 		adata->res[2].end = addr + ACP3x_BT_TDM_REG_END;  in snd_acp3x_probe()
201 		adata->res[3].name = "acp3x_i2s_irq";  in snd_acp3x_probe()
202 		adata->res[3].flags = IORESOURCE_IRQ;  in snd_acp3x_probe()
203 		adata->res[3].start = pci->irq;  in snd_acp3x_probe()
204 		adata->res[3].end = adata->res[3].start;  in snd_acp3x_probe()
206 		adata->acp3x_audio_mode = ACP3x_I2S_MODE;  in snd_acp3x_probe()
211 		pdevinfo[0].parent = &pci->dev;  in snd_acp3x_probe()
213 		pdevinfo[0].res = &adata->res[0];  in snd_acp3x_probe()
219 		pdevinfo[1].parent = &pci->dev;  in snd_acp3x_probe()
221 		pdevinfo[1].res = &adata->res[1];  in snd_acp3x_probe()
225 		pdevinfo[2].parent = &pci->dev;  in snd_acp3x_probe()
227 		pdevinfo[2].res = &adata->res[1];  in snd_acp3x_probe()
231 		pdevinfo[3].parent = &pci->dev;  in snd_acp3x_probe()
233 		pdevinfo[3].res = &adata->res[2];  in snd_acp3x_probe()
235 			adata->pdev[i] =  in snd_acp3x_probe()
237 			if (IS_ERR(adata->pdev[i])) {  in snd_acp3x_probe()
238 				dev_err(&pci->dev, "cannot register %s device\n",  in snd_acp3x_probe()
240 				ret = PTR_ERR(adata->pdev[i]);  in snd_acp3x_probe()
246 		dev_info(&pci->dev, "ACP audio mode : %d\n", val);  in snd_acp3x_probe()
249 	pm_runtime_set_autosuspend_delay(&pci->dev, 2000);  in snd_acp3x_probe()
250 	pm_runtime_use_autosuspend(&pci->dev);  in snd_acp3x_probe()
251 	pm_runtime_put_noidle(&pci->dev);  in snd_acp3x_probe()
252 	pm_runtime_allow(&pci->dev);  in snd_acp3x_probe()
258 			platform_device_unregister(adata->pdev[i]);  in snd_acp3x_probe()
260 	if (acp3x_deinit(adata->acp3x_base))  in snd_acp3x_probe()
261 		dev_err(&pci->dev, "ACP de-init failed\n");  in snd_acp3x_probe()
263 	pci_release_regions(pci);  in snd_acp3x_probe()
265 	pci_disable_device(pci);  in snd_acp3x_probe()
270 static int snd_acp3x_suspend(struct device *dev)  in snd_acp3x_suspend()  argument
275 	adata = dev_get_drvdata(dev);  in snd_acp3x_suspend()
276 	ret = acp3x_deinit(adata->acp3x_base);  in snd_acp3x_suspend()
278 		dev_err(dev, "ACP de-init failed\n");  in snd_acp3x_suspend()
280 		dev_dbg(dev, "ACP de-initialized\n");  in snd_acp3x_suspend()
285 static int snd_acp3x_resume(struct device *dev)  in snd_acp3x_resume()  argument
290 	adata = dev_get_drvdata(dev);  in snd_acp3x_resume()
293 		dev_err(dev, "ACP init failed\n");  in snd_acp3x_resume()
305 static void snd_acp3x_remove(struct pci_dev *pci)  in snd_acp3x_remove()  argument
310 	adata = pci_get_drvdata(pci);  in snd_acp3x_remove()
311 	if (adata->acp3x_audio_mode == ACP3x_I2S_MODE) {  in snd_acp3x_remove()
313 			platform_device_unregister(adata->pdev[i]);  in snd_acp3x_remove()
315 	ret = acp3x_deinit(adata->acp3x_base);  in snd_acp3x_remove()
317 		dev_err(&pci->dev, "ACP de-init failed\n");  in snd_acp3x_remove()
318 	pm_runtime_forbid(&pci->dev);  in snd_acp3x_remove()
319 	pm_runtime_get_noresume(&pci->dev);  in snd_acp3x_remove()
320 	pci_release_regions(pci);  in snd_acp3x_remove()
321 	pci_disable_device(pci);  in snd_acp3x_remove()
330 MODULE_DEVICE_TABLE(pci, snd_acp3x_ids);
346 MODULE_DESCRIPTION("AMD ACP3x PCI driver");